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Kipish [7]
3 years ago
5

Show your working for the following questions:

Mathematics
1 answer:
Llana [10]3 years ago
4 0
\frac{-18}{-3} (divide 3 from numerator and denominator) = \frac{6}{1} = 6

\frac{2}{7} × \frac{8}{3} = \frac{16}{21}

\frac{3}{8} +  \frac{1}{12} =  \frac{9}{24} +  \frac{2}{24} =  \frac{11}{24}
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I need help please.
alexdok [17]

Answer:

36x

Step-by-step explanation:

18x / 19 = ? / 57

(18x * 3) / (19 * 3) = ? / 57

You multiply by 3 in both the numerator and the denominator.

36x / 57 = ? / 57

After you multiply, your answer equals 36x.

? = 36x

7 0
3 years ago
A line passes through the point -10,9 and has a slope of 1/2. Write an equation in slope-intercept form for this line
vitfil [10]

Answer:

Step-by-step explanation:

The slope intercept form of an equation of a line is y = mx + b, where m is the slope and b is the y-intercept (the value of y when x=0).

Since the slope is (1/2), we can write:

y = (1/2)x + b

We want a value of b such that it forces the line to go through point (-10,9).  Enter that point in the equation and solve for b:

y = (1/2)x + b

9 = (1/2)*(-10) + b

9 = -5 + b

b = 14

The eqyuation of a line with a slope of (1/2) and goes through point (-10,9) is:

y = (1/2)x + 14

See attachment.

7 0
2 years ago
What equation describes the circle that is centered at (8, 3) and has a radius of 9
Sloan [31]

Answer:

<h3> (x-8)²+(y-3)² = 81</h3>

Step-by-step explanation:

The general equation of a circle is expressed as;

(x-a)²+(y-b)² = r² where;

(a, b) is the centre of the circle

r is the radius

Given the centre (8, 3) and the radius of 9, the equation of the circle will be;

(x-a)²+(y-b)² = r²

(x-8)²+(y-3)² = 9²

(x-8)²+(y-3)² = 81

hence the required equation is  (x-8)²+(y-3)² = 81

5 0
2 years ago
(8x^3y^3z^4)(7x^6z^6)
VikaD [51]
First you multiple 8x times 7x and get 56x and since 3y doesn't have another y so u Leave tht as 3y then you multiply 3z times 6z and get 18z then you multiply 4 times 6 and get 24 (56x^3y)(18z^24)
4 0
3 years ago
Free points help me 200÷2+200×5000000
bogdanovich [222]

Answer:

1000000100 hope it helps

5 0
3 years ago
Read 2 more answers
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